Genki Horiguchi  

, 堀口 元気

Genki, a young boy, was brought up by his father, who was a boxer struggling to make ends meet. After his father's passing, Genki made it his mission to fulfill his dream of becoming the world champion in boxing, despite facing numerous obstacles such as opposition from grandparents, relationship issues, moral dilemmas, and competition from friends and rivals. Can he ultimately achieve his goal?